(19)

(11)

EP 3 802 082 A1

(12)

(43) Date of publication: 14.04.2021 Bulletin 2021/15 (21) Application number: 19729370.7 (22) Date of filing: 03.06.2019

(51) International Patent Classification (IPC):  B29D 11/00(2006.01) (86) International application number: PCT/IB2019/054591 (87) International publication number: WO 2019/234593 (12.12.2019 Gazette 2019/50)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 04.06.2018 US 201862680008 P (71) Applicant: Alcon Inc. 1701 Fribourg (CH)	(72) Inventors: BREITKOPF, Richard Charles Johns Creek, Georgia 30097 (US) WU, Daqing Johns Creek, Georgia 30097 (US) GE, Junhao Johns Creek, Georgia 30097 (US) ZHANG, Steve Yun Johns Creek, Georgia 30097 (US) (74) Representative: Bohest AG  Holbeinstrasse 36-38 4051 Basel 4051 Basel (CH)